Question Will ASUS WS C612E SAGE support 7 GPUs?

[homeo.morphizm]

WS C621E SAGE has 7 PCIe 16x slots.

Yet the manual (https://dlcdnets.asus.com/pub/ASUS/m..._UM_V5_WEB.pdf) allows only 4 video cards in its largest configuration.

These 4 video cards are on SLI, however. We don't use SLI (scientific compute), but we would want to be able to use all 7 slots. We don't mind going from 16x to 8x (but not lower than 8x).

Is it doable? If not, why would this board have 7 slots?

 

[rgd1101]

WS C621E SAGE | Servers & Workstations | ASUS USA

Exceed performance beyond your imagination with the ASUS WS C621E Sage, featuring extreme 2-way Xeon Performance, up to 4-way Multi-graphics, 12 DIMM slots for hardware-intensive programs, server-class Intel XEON CPU and Error-correcting code (ECC) memory, connectivity support including U.2...

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3 x PCIe 3.0 x16 (x16 mode)
2 x PCIe 3.0 x16 (Single at x16, dual at x8/x8)
2 x PCIe 3.0 x16 (x8 mode)

 

[homeo.morphizm]

3 x PCIe 3.0 x16 (x16 mode)
2 x PCIe 3.0 x16 (Single at x16, dual at x8/x8)
2 x PCIe 3.0 x16 (x8 mode)

I'm aware. Call me paranoid, I just don't want to end up wasting time on buying and then having to return it, because this is what is said in the manual:

There's only four working configurations mentioned, and the one with the greatest number of GPUs only has 4 of them. I realize that most plug their GPUs right into the slots, which doesn't leave any space which should explain why the manual doesn't mention any other configuration. I still prefer to err on the side of caution is the reason I'm asking the question.

So, nothing to worry about? All slots should run on 8x, at the very least?

Thanks.

 

[Dmytro Ukraine]

So, do you have an experience with 7 cards?